Cooling means for draw works for well drilling machinery



Jan. 10, 1933." MYERS 1,894,001

COOLING MEANS FOR DRAW WORKS FOR WELL DRILLING MACHINERY Fild Dec. 13, 1929 2 Sheets-Sheet 1 gwumkoz ST 50211071 Eljyers G. F. MYERS Jan. 10,1933.

1,394,001 COOLING MEANS FOR DRAW WORKS FOR WELL DRILLING MACHINERY Filed Dec. 15, 1929 2 Sheets-Sheet 2 Patented Jan. 10, 1933 UNITED STATES PA'IY E'NT' OFFICE GORDON F. MYERS, OF BEAUMONT, TEXAS, ASSIGNOR TO BEAUMONT IRON WORKS COMPANY, OF BEAUMONT, TEXAS, A CORPOIIRIA'JEION' OF TEXAS coonme arms ron DRAW wonxs non WELL DRILLING MACHINERY Application filed December 18, 1929. Serial No. 413,905.

This invention relates to winding drums used in the draw works of well drilling machinery, in which the drum is checked in-its rotation-or held from rotation by means of brake bands engaging braking rims on the opposite ends of the drum, and particularly to means whereby water may be circulated through these rims for the purpose of keeping the rims cool under the friction created by the brake bands.

One of the objects of the invention is to provide a drum of this character so constructed that the shaft upon which the drum is mounted does not have to be formed with bores coaxial with the shaft and through which the water circulates in passing to and from the braking rims or flanges, but in which the opposed hu s of the winding drum are provided with swiveled heads communicating with ducts leading to circulating passages formed in the brake rims of the drum and extending through the core of the drum, thus eliminating the necessity of introducing the water through the shaft.

A further object is to provide a structure of this character wherein detachable brake tires are used engaging with the flanges of the drum and resting upon the brake rims of the flanges and another object in this connection is to provide means whereby the bolts or rivets holding the brake tires upon the rims will permit contraction and expansion of the brake tire;

Still another object of the invention is to provide an improved means for causingthe circulation of water within the brake tires which will eliminate all pockets or dea places, butflwill cause the constant flow of water through one tire, then through the core or body of the winding drum, through the other tire and out, without the necessity of using any pump for the purpose of causing the circulation, although a pump ma be used if desired.

nother object in this connection is to provide means whereby the water may be cooled after it has passed from the tire atone end of the drum and prior to its passage into the tire at the other end of the drum.

In the drawings: 7

then

Figure 1 is a longitudinal vertical section of the complete device;

Figure2 is a developed view'of one of the brake tires;

Figure '3.is a vertical section on the line 33 of Figure 1;

Figure 4 is a vertical section on the line 4'4 of Figure 6; I

Figure 5 is a frontelev'ation of the member shown in Figure 4; and

Figure 6 is a vertical section on the line 6+6 of Figure 4'.

Referring to the drawings:

The numeral 10 designates the shaft upon which the drum, designatedgenerally '11, is mounted for rotation. The drum-comprises the core 12 having the apertured septum 13 which extends. from the middle of the core to the shaft IO and having at each'end a hub 14 and a flange 15. The core 12 constitutes the winding space for the wire or other cable.

As shown, the hub 14 extends outward around the shaft beyond the inner face of the flange 15and this flange 15 is formed with the outwardly projecting annular rim 16 flanged at 17. Each hub 14 has a bore 18 formed therein extending from the outer end of the hub inward to any desired extent, this bore then being carried radially outward as at 19 to the outer face of the rim 16. The

flange '16 at a diametrically opposite portion of the drum is formed with the transversely extending bore 20 which opens upon the face of the flange as at 21 at one end and at its other intersects a radial bore 22 which extends inward toward the hub 14 and there d intersects a bore 23 which opens into the hollow interior of'the core 12.

Fitting over the shaft 10 at each end of the drum is a head 24 which has an annular flange 25 which fits over the extremity of the adjacent hub 14.

A packing gland 26 is carried upon thls flange 25 and is disposed between this flange 25 and the peripheral face of the hub 14, as shown in Figure 1. A pack ng 27 is, of course, disposed inward of this flange, this acking being compressed by the packing gland through the instrumcntallty of the screws .28.

The head 24 is, of course, centrally apertured for the passage of the shaft 10, and this central aperture is enlarged adjacent the outer face of the head for the reception of the packing 29 and a packing gland 30 which constitutes a flange formed upon the face of an annular plate 31 held in place against the head by means of the adjusting screws 32. I do not wish to be limited to the specific means of packing which I have illustrated as obviously this packing gland might be formed in other ways.

The inner face of the head is formed to provide an annular passage 33 which is of suiflcient diameter as to at all times cover and extend over the corresponding bore 18. The peripheral face of each head is formed with an enlarged bore 34 into which extends a pipe fitting 35 connected by suitable pipe fittings to a flexible hose 36. It will be understood that cooling water enters one of these hose 36 at point A and is discharged through the hose 36 at point B.

Mounted upon each of the rims 16 is a brake tire 37, the inner face of which is formed with a series of more or less circumferentially directed ribs 42 as will be more fully described. 7

The inner margin of each brake tire 37 is formed with the flange 38 which fits against the margin of the corresponding flange 15 and over the edge of this flange and the flange 38 is held to the margin of the flange 15 by means of a series of bolts or rivets 39. The outer end of each brake tire 37 is formed with an outward flange 40' and an inward flange 40, which fits against the flange 17 and is held thereto by a series of bolts or rivets 41.

It will be understood that the contacting faces of the flanges 17 and 40 have gaskets or other packing material therein preventing any leakage of water and that gaskets or other packing material are disposed between each flange 38 and the corresponding margn of a flange 15.

It will be seen that with the construction so far described..water will enter at A, and will pass through the corresponding head 24 into the water space 33 around the shaft and thence into the bore 18, then out through the bore 19 around the space between the brake tire 37 and the flange 18, then through the ducts or bores 20, 22, and 23 into the interior of the brake core 12 longitudinally along this core into the ducts or passages 23, 22, 20 and 21 into the space betweenthe opposite brake tire 37 and the flange 16,around this space and out through the bore 19of this flange and the bore 18 to the space 33 formed in the swiveled head 35 and then out to the hose connections at 36. I 2

In order to secure a constant circulation o the Water through the water space between the brake tire and the rim or flange 16, I form the interior face of the brake tire as shown in Figure 2, that is, with the spirally arranged rib 42, this rib at one end being outwardly deflected as at 43 to the outer flange 40, and then extending spirally around the periphery of the brake tire and at its other end being inwardly deflected at 44 so as to abut against the flange 15. Thus an approximately spiral duct 46 is formed between each brake tire 37 and the corresponding rim 16, the bore 19 opening in to one end of this spiral duct while the aperture 21 opens into the other end of this duct. The path of the water is indicated by arrows.

The water enters the drum hub and continues, following the arrows, to the brake tire and is carried two and one-half times around and within the brake tire. Then the water leaves the brake tire and flows into the general cavity of the drum core and then in accordance with the arrows through the brake tire on the right hand side of the drum and then out at B. By using the general cavity of the drum core as a means of carrying the fluid from one side to the other, the fluid is given an opportunity to cool before it passes into the brake tire on the opposite side of the mechanism. Y

The construction which I have designed permits the liquid or cooling fluid to move under the surface exposed to friction in one direction, and the channels eliminate all possibility of any dead pockets. If a static pressure is maintained on the system, the rotation of the drum will circulate the water, eliminating a pump from the circulating system.

It will be noted that the drum flanges 15 are cast together with the hub and the core 12. These flanges are so formed as to permit a simple assembly of the various parts, doing away with all the complication which renders machinery of this character difficult to handle and expensive to make. Preferably, though I do not wish to be limited to this, it is of great importance to use a bracing web 47 which extends outward from the flange 15 to the rim 16. This web, is, of course, preferably cast integral with the flange and rim and gives the braking system a strength unequaled in any existing design known to me, and facilitates the use of a brake tire.

The bolts 39 and 41 secure the tire on each side to the brake flanges. These two rows of bolts serve two purposes, one to make a water-tight joint with the flanges, the other, to eliminate the necessity of retaining keys and to increase the strength of the construction. The row of bolts on each side of the brake tire makes adjustment possible in the event of expansion or contraction of the tire under heating or cooling and this double row of bolts is very valuable in counteracting the torque effect on the system when the brakes are being used. The unit casing including the drum hubs, flanges and core 12--e1iminates the necessity for pipe connections within the system. a

It will be seen that this construction entirely eliminates the necessity of boring the shaft 10 longitudinally for the purpose of conducting water into the water circulating system and out therefrom. At the same time, the swiveled heads may be readily removed to permit the packing to be inserted or replenished or to prevent any possible chance of the ducts or passages becoming clogged. The brake tire being removable, permits the interior passages for circulating water being thoroughly cleaned at any time.

While I have illustrated a construction which I believe to be particularly effective, I do not wish to be limited thereto, as it is obvious that many minor details might be changed in many respects without departing from the spirit of the invention as defined in a the appended claims.

I claim:

1. A winding mechanism of the character described, including a solid shaft, a drum mounted thereon having a medially disposed hollow core, oppositely disposed hubs,flanges on each end of the core and brake rims carried by the flanges, the hub, flanges and brake rims having cooling fluid passages communicating with the hollow interior of the core, and means swivelly' connected to the hubs whereby cooling fluid may be introduced into one of said hubs and discharged from the other hub after passing through said core and passages. I

2. A winding mechanism including a shaft, a drum thereon having opposed hubs,

flanges, braking rims carried by the flanges,

the hubs, flanges and rims having a circulating system, fixed heads having water tight engagement with and over the ends of the hubs and within which the hubs rotate, one

'head having a fluid inlet and the other havingafluid outlet, the circulating system having channels openin into the said heads.

'3. In a winding rum of the character described, a hollow core, a solid shaft extending through and supporting said core, flanges at the ends of the core and brake rims carried by the flanges, means for circulating fiuid through the anges and brake rims at one end of the drum throughthe hollow core, through the flange and brake rim at the opposite end of the drum.

4. A winding mechanism including a swiveled engagement with each hub to introduce and carry off cooling fiuid into and from the ducts of the hubs.

5. In a winding drum having brakin rims at opposite ends, and means for circu ating cooling fluid through said braking rims, a hollow core open upon its inside face and having communication with the circulating means in the braking rim.

6. A winding mechanism including a shaft, a drum thereon having opposed heads, brake flanges. and a brake rim, the core of the drum between said flanges being hollow, there being a fluid circulating space within each rim and communicating with the corresponding hub, the hub having a bore opening upon the end face of the hub, and heads mounted upon the shaft and extending over the hubs and formed to provide a fluid circulating space between each head and the corresponding hub, packing glands disposed between each head and the corresponding hub and between each head and the" shaft, and

means for conducting circulating fluid into one of said heads and out of the other head.

7. In a water cooled winding drum, an inner rim and an outer rim, the space between the rims being divided by ribs to form a water passage extending spirally around the inner rim a plurality of times, one end of the spiral passage having an inlet port and the other having an outlet port. e

8. A winding drum having hubs, flanges, and brake rims at its opposite ends, the core of the drum being hollow, the brake rims being hollow, a solid shaft extending through and supporting said core, means for conducting water into one of said hubs, thence into the corresponding flange and rim, and thence into the hollow core of the drum, thence into the flange and rim at the other end of the drum, then out through the hub thereof. 7

In testimony whereof I aflix my signature.

- GORDON F. MYERS.

shaft, a drum mounted thereon having a core,

the core being hollow, concentric to and open upon the surface of the shaft, the drum at,

each end ofthe core having a hub engaging the shaft and having a flange provided with an butstanding hollow brake rim, each hub and flange having an inlet duct leading from one end of the hub and an outlet duct leading into the hollow core, and means having 

